MKI67 and neoplasm: Compared with N- patients, N+ patients were younger (50.88 ± 10.66 vs. 52.05 ± 10.63, p<0.001) (Table 1); the tumor size was larger in the N+ group (1.57 ± 0.39 vs. 1.43 ± 0.45, p<0.001), and Ki67 levels were higher (27.63% ± 19.84% vs. 25.98% ± 19.71%, p<0.001).